1·The default values represent free air convection.
默认值代表的是自由空气的对流系数。
2·The pitot-static tube can be used only in free air.
皮托管仅能用在自由流中。
3·Every person should be able to breathe smoke-free air.
每个人都应有权呼吸无烟雾的空气。
4·Successful hibernation requires free air circulation. 40/45?
成功的冬眠要求有好的空气循环，40/45?。
5·The design of the house should allow free air circulation and sufficient sunlight.
建筑房屋应该使空气自由流通，且有充足的阳光照射。
6·Friendship loves a free air, and will not be fenced up in straight and narrow enclosure.
友谊需要自由，不只是限定在狭小的圈子里。
7·Speaking like this, it seems to me that existence breathes the free air of the summit.
谈到像这一点，我觉得生命实存呼吸颠峰的自由空气。
8·Even as in one who at last draws free air, after long stifling with his own polluted breath.
就象是被自己污浊的呼吸长时间窒息之后，终于吸进了自由的空气。
9·Combustible cloud explosion with limited energy release in free air is studied in this paper.
本文研究自由场中有限释能速率的可燃气云爆炸问题。
10·Accumulated debris shall be removed by vacuum, blowing with oil-free air, or wiping with clean rags.
打磨杂物用吸尘器吸走，或使用无油气体吹掉，用干布擦净。